dropwizard-giving-400-error-when-creating-new-resource 使用 POST

Question

public class UserProfileData {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private long id;

    @Column(name = "firstName", nullable = false)
    private String firstName;

    @Column(name = "lastName", nullable = true)
    private String lastName;

    @Column(name = "country", nullable = true)
    private String country;

    public UserProfileData() {
    }

    public UserProfileData(String firstName, String lastName, String country) {
        this.firstName = firstName;
        this.lastName = lastName;
        this.country = country;
    }


    public long getId() {
        return id;
    }


    public void setObjectId(long id) {
        this.id = id;
    }

    @JsonProperty
    public String getFirstName() {
        return firstName;
    }

    @JsonProperty
    public void setFirstName(String firstName) {
        this.firstName = firstName;
    }

    @JsonProperty
    public String getLastName() {
        return lastName;
    }

    @JsonProperty
    public void setLastName(String lastName) {
        this.lastName = lastName;
    }

    @JsonProperty
    public String getCountry() {
        return country;
    }

    @JsonProperty
    public void setCountry(String country) {
        this.country = country;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (!(o instanceof UserProfileData)) return false;

        final UserProfileData that = (UserProfileData) o;

        return Objects.equals(this.id, that.id) &&
                Objects.equals(this.firstName, that.firstName) &&
                Objects.equals(this.lastName, that.lastName) &&
                Objects.equals(this.country, that.country);
    }

    @Override
    public int hashCode() {
        return Objects.hash(id, firstName, lastName, country);
    }
}

========================================================================

DAO Method

   public UserProfileData create(UserProfileData userProfileData) {
        LOGGER.info("UserProfileData: Persisting New User");
        return persist(userProfileData);        
    }

=======================================================================

Resource Call
@Path("/user")
@Produces(MediaType.APPLICATION_JSON)
public class UserProfileDataResource {

 @POST
    @Path("/create")
    @Consumes(MediaType.APPLICATION_JSON)
    @UnitOfWork
    public UserProfileData createUser(UserProfileData userProfileData) {
        //ResourceHelper.checkRequiredParams(requesterId);
        LOGGER.info("User created");
        return userProfileDataDAO.create(userProfileData);
    }
======================================================================

当我调用资源用于创建新的用户数据时，它给了我错误

curl -H "Content-Type: application/json" -X POST -d "{"firstName":"Sachin","lastName":"Tendulkar","country":"India"}" http://localhost: 8080/用户/创建

错误：{"code":400,"message":"无法处理 JSON","details":null}

尝试了几乎所有内容，但无法弄清楚为什么会出现此错误以及如何解决？

Answer 1

要获得有关 400 错误的有用消息，请在球衣上注册：

environment.jersey().register(new JsonProcessingExceptionMapper(true));

它将提供有关 400 响应的更详细消息。